hexo/node_modules/webpack-sources/lib/SourceMapSource.js

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2023-10-03 11:14:36 +08:00
/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
"use strict";
const Source = require("./Source");
const streamChunksOfSourceMap = require("./helpers/streamChunksOfSourceMap");
const streamChunksOfCombinedSourceMap = require("./helpers/streamChunksOfCombinedSourceMap");
const { getMap, getSourceAndMap } = require("./helpers/getFromStreamChunks");
class SourceMapSource extends Source {
constructor(
value,
name,
sourceMap,
originalSource,
innerSourceMap,
removeOriginalSource
) {
super();
const valueIsBuffer = Buffer.isBuffer(value);
this._valueAsString = valueIsBuffer ? undefined : value;
this._valueAsBuffer = valueIsBuffer ? value : undefined;
this._name = name;
this._hasSourceMap = !!sourceMap;
const sourceMapIsBuffer = Buffer.isBuffer(sourceMap);
const sourceMapIsString = typeof sourceMap === "string";
this._sourceMapAsObject =
sourceMapIsBuffer || sourceMapIsString ? undefined : sourceMap;
this._sourceMapAsString = sourceMapIsString ? sourceMap : undefined;
this._sourceMapAsBuffer = sourceMapIsBuffer ? sourceMap : undefined;
this._hasOriginalSource = !!originalSource;
const originalSourceIsBuffer = Buffer.isBuffer(originalSource);
this._originalSourceAsString = originalSourceIsBuffer
? undefined
: originalSource;
this._originalSourceAsBuffer = originalSourceIsBuffer
? originalSource
: undefined;
this._hasInnerSourceMap = !!innerSourceMap;
const innerSourceMapIsBuffer = Buffer.isBuffer(innerSourceMap);
const innerSourceMapIsString = typeof innerSourceMap === "string";
this._innerSourceMapAsObject =
innerSourceMapIsBuffer || innerSourceMapIsString
? undefined
: innerSourceMap;
this._innerSourceMapAsString = innerSourceMapIsString
? innerSourceMap
: undefined;
this._innerSourceMapAsBuffer = innerSourceMapIsBuffer
? innerSourceMap
: undefined;
this._removeOriginalSource = removeOriginalSource;
}
_ensureValueBuffer() {
if (this._valueAsBuffer === undefined) {
this._valueAsBuffer = Buffer.from(this._valueAsString, "utf-8");
}
}
_ensureValueString() {
if (this._valueAsString === undefined) {
this._valueAsString = this._valueAsBuffer.toString("utf-8");
}
}
_ensureOriginalSourceBuffer() {
if (this._originalSourceAsBuffer === undefined && this._hasOriginalSource) {
this._originalSourceAsBuffer = Buffer.from(
this._originalSourceAsString,
"utf-8"
);
}
}
_ensureOriginalSourceString() {
if (this._originalSourceAsString === undefined && this._hasOriginalSource) {
this._originalSourceAsString = this._originalSourceAsBuffer.toString(
"utf-8"
);
}
}
_ensureInnerSourceMapObject() {
if (this._innerSourceMapAsObject === undefined && this._hasInnerSourceMap) {
this._ensureInnerSourceMapString();
this._innerSourceMapAsObject = JSON.parse(this._innerSourceMapAsString);
}
}
_ensureInnerSourceMapBuffer() {
if (this._innerSourceMapAsBuffer === undefined && this._hasInnerSourceMap) {
this._ensureInnerSourceMapString();
this._innerSourceMapAsBuffer = Buffer.from(
this._innerSourceMapAsString,
"utf-8"
);
}
}
_ensureInnerSourceMapString() {
if (this._innerSourceMapAsString === undefined && this._hasInnerSourceMap) {
if (this._innerSourceMapAsBuffer !== undefined) {
this._innerSourceMapAsString = this._innerSourceMapAsBuffer.toString(
"utf-8"
);
} else {
this._innerSourceMapAsString = JSON.stringify(
this._innerSourceMapAsObject
);
}
}
}
_ensureSourceMapObject() {
if (this._sourceMapAsObject === undefined) {
this._ensureSourceMapString();
this._sourceMapAsObject = JSON.parse(this._sourceMapAsString);
}
}
_ensureSourceMapBuffer() {
if (this._sourceMapAsBuffer === undefined) {
this._ensureSourceMapString();
this._sourceMapAsBuffer = Buffer.from(this._sourceMapAsString, "utf-8");
}
}
_ensureSourceMapString() {
if (this._sourceMapAsString === undefined) {
if (this._sourceMapAsBuffer !== undefined) {
this._sourceMapAsString = this._sourceMapAsBuffer.toString("utf-8");
} else {
this._sourceMapAsString = JSON.stringify(this._sourceMapAsObject);
}
}
}
getArgsAsBuffers() {
this._ensureValueBuffer();
this._ensureSourceMapBuffer();
this._ensureOriginalSourceBuffer();
this._ensureInnerSourceMapBuffer();
return [
this._valueAsBuffer,
this._name,
this._sourceMapAsBuffer,
this._originalSourceAsBuffer,
this._innerSourceMapAsBuffer,
this._removeOriginalSource
];
}
buffer() {
this._ensureValueBuffer();
return this._valueAsBuffer;
}
source() {
this._ensureValueString();
return this._valueAsString;
}
map(options) {
if (!this._hasInnerSourceMap) {
this._ensureSourceMapObject();
return this._sourceMapAsObject;
}
return getMap(this, options);
}
sourceAndMap(options) {
if (!this._hasInnerSourceMap) {
this._ensureValueString();
this._ensureSourceMapObject();
return {
source: this._valueAsString,
map: this._sourceMapAsObject
};
}
return getSourceAndMap(this, options);
}
streamChunks(options, onChunk, onSource, onName) {
this._ensureValueString();
this._ensureSourceMapObject();
this._ensureOriginalSourceString();
if (this._hasInnerSourceMap) {
this._ensureInnerSourceMapObject();
return streamChunksOfCombinedSourceMap(
this._valueAsString,
this._sourceMapAsObject,
this._name,
this._originalSourceAsString,
this._innerSourceMapAsObject,
this._removeOriginalSource,
onChunk,
onSource,
onName,
!!(options && options.finalSource),
!!(options && options.columns !== false)
);
} else {
return streamChunksOfSourceMap(
this._valueAsString,
this._sourceMapAsObject,
onChunk,
onSource,
onName,
!!(options && options.finalSource),
!!(options && options.columns !== false)
);
}
}
updateHash(hash) {
this._ensureValueBuffer();
this._ensureSourceMapBuffer();
this._ensureOriginalSourceBuffer();
this._ensureInnerSourceMapBuffer();
hash.update("SourceMapSource");
hash.update(this._valueAsBuffer);
hash.update(this._sourceMapAsBuffer);
if (this._hasOriginalSource) {
hash.update(this._originalSourceAsBuffer);
}
if (this._hasInnerSourceMap) {
hash.update(this._innerSourceMapAsBuffer);
}
hash.update(this._removeOriginalSource ? "true" : "false");
}
}
module.exports = SourceMapSource;